D prevents repeating. experiments have to be repeated to be reliable.
The components of the urinary system are the kidneys, ureters, urinary bladder, and urethra.
These are the factors that determine a nation's human development index (HDI):
1. Average life and health expectancy
2. Education- literacy rates, and ratio of students who are enrolled in primary, secondary and tertiary levels
3. Individual income- a person’s income against the gross domestic product (GDP)
Answer:
Bifocal lenses are used for people who are both nearsighted and farsighted. It is common for people who are over the age of 40 to begin to notice a change in their vision and require the need for bifocals. As we age, our eyes begin to have trouble focusing on objects at different distances away.
Explanation:
The answer is codon. The genetic code is redundant as there are multiple codons are make the same protein. The codon table is 64 variants of 3 letter nucleotides that make 20 different proteins. 3 of the 64 codons make 1 stop codon (AUG -Met) and 3 stop codons.